Femtosecond Laser: Techniques and Technology


Book Description

The book Femtosecond Laser: Techniques and Technology provides complete insight of Femtosecond Laser technology in various ocular indications. Refractive Surgery technology has undergone rapid advancements and innovations in last two decades. Femtosecond Laser offers new possibilities in the field of minimally invasive corneal surgery. It employs near infrared pulses to cut tissue with minimal collateral tissue damage. The highly localized tissue effect of low energy Femtosecond Laser shall expand the capabilities and precision of this technology in near future and may be used to create three-dimensional intrastromal resection with micron precision. Femtosecond laser is a simple, rapid reliable and efficient method in ophthalmology with satisfactory results for effective lens position and refractive outcome. Femtosecond laser is enjoying rapid growth in the area of cataract surgery. The Femtosecond Laser has proved its versatility in Lamellar keratoplasty, customized trephination in penetrating keratoplasty, tunnel creation for intracorneal ring segments, astigmatic keratotomy for keratoprostheses, non-invasive trans-scleral glaucoma surgery, retinal imaging presbyopic surgery and cataract surgery. Advances in ultrafast laser technology continued to improve the surgical safety, efficiency, speed and versatility of Femtosecond Lasers in Ophthalmology. Femtosecond Laser finds application in anterior and posterior segment indications of ophthalmology.




Femtosecond Laser Techniques and Technology


Book Description

A femtosecond laser is a laser which emits ultrashort pulses, used for minimally invasive corneal surgery. This book is a concise guide to femtosecond laser technology and the various techniques for its use. The internationally recognised authors from the US, Europe and Asia, begin with an introduction and description of current technology and future prospects. The following chapters discuss the step by step application of the techniques to different ocular disorders. The book includes more than 200 colour illustrations and images and an ancillary DVD presents real life examples of various femtosecond laser procedures.




Femtosecond Laser Pulses


Book Description

This is the second edition of this advanced textbook written for scientists who require further training in femtosecond science. Four years after pub- cation of the ?rst edition, femtosecond science has overcome new challenges and new application ?elds have become mature. It is necessary to take into account these new developments. Two main topics merged during this period that support important scienti?c activities: attosecond pulses are now gen- ated in the X-UV spectral domain, and coherent control of chemical events is now possible by tailoring the shape of femtosecond pulses. To update this advanced textbook, it was necessary to introduce these ?elds; two new ch- ters are in this second edition: “Coherent Control in Atoms, Molecules, and Solids”(Chap.11)and“AttosecondPulses”(Chap.12)withwell-documented references. Some changes, addenda, and new references are introduced in the ?rst edition’s ten original chapters to take into account new developments and updatethisadvancedtextbookwhichistheresultofascienti?cadventurethat started in 1991. At that time, the French Ministry of Education decided that, in view of the growing importance of ultrashort laser pulses for the national scienti?c community, a Femtosecond Centre should be created in France and devoted to the further education of scientists who use femtosecond pulses as a research tool and who are not specialists in lasers or even in optics.




Femtodynamics


Book Description

Femtodynamics: A Guide to Laser Settings and Procedure Techniques to Optimize Outcomes with Femtosecond Lasers is a new, comprehensive text that presents a practical approach to optimizing laser settings and procedure techniques for performing LASIK, intracorneal ring segment placement, and other corneal procedures with currently available femtosecond lasers. Dr. Ella Faktorovich has provided detailed photographs and illustrations to demonstrate the techniques for optimizing procedure outcomes. The author guides you step-by-step through common procedures while providing a detailed approach to managing and preventing possible complications. Topics covered include: - Strategies for centration - Decreasing the incidence of opaque bubble layer formation - Optimizing the energy delivered to the cornea - Improving the quality of dissection As the first book on femtosecond laser application to corneal surgery, Femtodynamics: A Guide to Laser Settings and Procedure Techniques to Optimize Outcomes with Femtosecond Lasers is a useful guide for beginning surgeons as well as surgeons looking to develop or enhance their working knowledge of femtosecond lasers.




High Resolution Imaging in Microscopy and Ophthalmology


Book Description

This open access book provides a comprehensive overview of the application of the newest laser and microscope/ophthalmoscope technology in the field of high resolution imaging in microscopy and ophthalmology. Starting by describing High-Resolution 3D Light Microscopy with STED and RESOLFT, the book goes on to cover retinal and anterior segment imaging and image-guided treatment and also discusses the development of adaptive optics in vision science and ophthalmology. Using an interdisciplinary approach, the reader will learn about the latest developments and most up to date technology in the field and how these translate to a medical setting. High Resolution Imaging in Microscopy and Ophthalmology – New Frontiers in Biomedical Optics has been written by leading experts in the field and offers insights on engineering, biology, and medicine, thus being a valuable addition for scientists, engineers, and clinicians with technical and medical interest who would like to understand the equipment, the applications and the medical/biological background. Lastly, this book is dedicated to the memory of Dr. Gerhard Zinser, co-founder of Heidelberg Engineering GmbH, a scientist, a husband, a brother, a colleague, and a friend.




Femtosecond Laser Micromachining


Book Description

Femtosecond laser micromachining of transparent material is a powerful and versatile technology. In fact, it can be applied to several materials. It is a maskless technology that allows rapid device prototyping, has intrinsic three-dimensional capabilities and can produce both photonic and microfluidic devices. For these reasons it is ideally suited for the fabrication of complex microsystems with unprecedented functionalities. The book is mainly focused on micromachining of transparent materials which, due to the nonlinear absorption mechanism of ultrashort pulses, allows unique three-dimensional capabilities and can be exploited for the fabrication of complex microsystems with unprecedented functionalities.This book presents an overview of the state of the art of this rapidly emerging topic with contributions from leading experts in the field, ranging from principles of nonlinear material modification to fabrication techniques and applications to photonics and optofluidics.




Femtosecond Laser Surgery in Ophthalmology


Book Description

The femtosecond laser has emerged as a groundbreaking game-changer in ophthalmic surgery. It was first introduced for corneal refractive surgery in flap creation during LASIK, and subsequently for cataract surgery in 2008. The femtosecond laser cuts deeply on a single plane without collateral damage. Its high precision and safety result in excellent outcomes in the hands of experienced eye surgeons, benefiting virtually everyone. Femtosecond Laser Surgery in Ophthalmology fills an unmet need for a comprehensive, up-to-date resource on growing applications of this state-of-the-art technology. H Burkhard Dick is a world-renowned pioneer who has performed more than 6,000 laser cataract operations. Readers will benefit from his keen insights along with the collective expertise of co-authors Tim Schultz, Ronald D. Gerste, and a cadre of top-notch contributors. Twenty-nine chapters encompass basic physics, refractive and therapeutic cornea treatment, various aspects of laser cataract surgery, and patient selection. Key Features Clinical pearls, outcomes, and complications management in femtosecond laser-assisted in situkeratomileusis surgery Discussion of crucial steps including capsulotomy, lens fragmentation, and corneal incisions The use of the femtosecond laser for presbyopia, pediatric cataract surgery, and ocular comorbidities Extensive videos posted in the Thieme MediaCenter further elucidate techniques More than 300 high quality illustrations and photos add a rich visual dimension This practical book provides in-depth knowledge on the applications of femtosecond laser surgery, enabling cataract and refractive surgeons to incorporate these techniques into daily practice. Ophthalmologists and ophthalmology fellows and residents will discover an invaluable resource for specialized training.




Ultrashort Laser Pulse Phenomena


Book Description

Ultrashort Laser Pulse Phenomena, Second Edition serves as an introduction to the phenomena of ultra short laser pulses and describes how this technology can be used to examine problems in areas such as electromagnetism, optics, and quantum mechanics. Ultrashort Laser Pulse Phenomena combines theoretical backgrounds and experimental techniques and will serve as a manual on designing and constructing femtosecond ("faster than electronics") systems or experiments from scratch. Beyond the simple optical system, the various sources of ultrashort pulses are presented, again with emphasis on the basic concepts and how they apply to the design of particular sources (dye lasers, solid state lasers, semiconductor lasers, fiber lasers, and sources based on frequency conversion). - Provides an easy to follow guide through "faster than electronics" probing and detection methods - THE manual on designing and constructing femtosecond systems and experiments - Discusses essential technology for applications in micro-machining, femtochemistry, and medical imaging




Femtosecond Optical Frequency Comb: Principle, Operation and Applications


Book Description

Over the last few years, there has been a convergence between the fields of ultrafast science, nonlinear optics, optical frequency metrology, and precision laser spectroscopy. These fields have been developing largely independently since the birth of the laser, reaching remarkable levels of performance. On the ultrafast frontier, pulses of only a few cycles long have been produced, while in optical spectroscopy, the precision and resolution have reached one part in Although these two achievements appear to be completely disconnected, advances in nonlinear optics provided the essential link between them. The resulting convergence has enabled unprecedented advances in the control of the electric field of the pulses produced by femtosecond mode-locked lasers. The corresponding spectrum consists of a comb of sharp spectral lines with well-defined frequencies. These new techniques and capabilities are generally known as “femtosecond comb technology. ” They have had dramatic impact on the diverse fields of precision measurement and extreme nonlinear optical physics. The historical background for these developments is provided in the Foreword by two of the pioneers of laser spectroscopy, John Hall and Theodor Hänsch. Indeed the developments described in this book were foreshadowed by Hänsch’s early work in the 1970s when he used picosecond pulses to demonstrate the connection between the time and frequency domains in laser spectroscopy. This work complemented the advances in precision laser stabilization developed by Hall.




Ultrashort Pulse Laser Technology


Book Description

Ultrashort laser pulses with durations in the femtosecond range up to a few picoseconds provide a unique method for precise materials processing or medical applications. Paired with the recent developments in ultrashort pulse lasers, this technology is finding its way into various application fields. The book gives a comprehensive overview of the principles and applications of ultrashort pulse lasers, especially applied to medicine and production technology. Recent advances in laser technology are discussed in detail. This covers the development of reliable and cheap low power laser sources as well as high average power ultrashort pulse lasers for large scale manufacturing. The fundamentals of laser-matter-interaction as well as processing strategies and the required system technology are discussed for these laser sources with respect to precise materials processing. Finally, different applications within medicine, measurement technology or materials processing are highlighted.